This is a magnetic stick that allows you to instantly remove the ball from the Logicool MX ERGO. It's designed specifically for those who use it tilted at 20°. * Attaches to the plate with a built-in magnet (it doesn't use adhesive, so you can easily remove it if you want to change to 0°). * Tilting from 20° to 0° will push the ball out with the tip of the stick. * After cleaning, returning to 20° will retract the stick and allow you to put the ball back in. * Also compatible with MX ERGO S. Made in Japan Color: Black Material: Plant-based resin (bioplastic PLA), neodymium magnet ※Please note that it is manufactured with a 3D printer, and there may be unevenness on the surface due to layering. Type: Mouse